PREMIUM FOOD GRADE MATERIAL:Made of 100% food grade pulp,non-toxic,non-stick.Keep your breads,dumplings,buns,dim sum integrity and nice look.And no effect on the taste of the food. . Perforated Design:There are enough holes in the blade that allow steam and hot air to circulate freely in the fryers keeping the original food correct. . EASY TO CLEAN:The round steaming papers keep your steamers and air fryers free from food residue, make clean up a breeze. . ANTI-STICK PROPERTIES : These air fryer perforated parchment are waterproof and oil-proof, preventing the cake from sticking to the bottom of the cake pan. No extra butter or grease is needed, which enhances the taste and enjoys baking . Heat resistance: 450 degree F (232),perfect for bamboo steamer,air fryer,cake pan and more. .